EXPERIMENTAL PROOF OF THE VIOLATION OF THE BELL INEQUALITY USING QUANTUM COMPUTERS |

Due to the potential of quantum computing to be exponentially more powerful than classical computing due to superposition and entanglement, various businesses, including IBM, have begun to create quantum computers. IBM has been developing publicly accessible cloud-based quantum computers since 2016. While quantum computing has the potential to improve quantum decryption, optimization, and simulation, quantum computers must retain a high level of accuracy as they scale up. The fundamental gates utilised in IBM's quantum computers are described in this publication, along with representations of each gate. The Einstein-Podolsky-Rosen Paradox is explained through a thought experiment involving two quantum entangled particles, and two potential reasons are presented: violation of locality and the Hidden Variable Theory. By producing entanglement between two qubits and then measuring both qubits along a defined combination of axes, experimental results regarding the quality of entanglement established on IBM's publicly accessible 5-qubit quantum computers are given, confirming the violation of the Bell-CHSH Inequality. Six of the seven 5-qubit quantum computers tested violated the Bell-CHSH Inequality, revealing significant quantum entanglement between two qubits, a requirement for scaling up quantum computers to exploit their exponentially growing capability.

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